Apparatus for waterproofing and finishing textile material.



N0. 653,702. Patented .IuIy l7, I900. J. RUDOLF.

APPARATUS FOR WATERPROOFING AND FINISHING TEXTILE MATERIAL.

(Application filed Aug. 22, 1899.)

(No Model.)

IELI- NITED STATES PATENT Demon.

J OSEF RUDOLF, OF GERA, GERMANY.

APPARATUS FOR WATERPROOFING AND FINISHING TEXTILE MATERIAL.

SPECIFICATION forming part of Letters Patent No. 653,702, dated July 17, 1900.

Original application filed March 26, 1898, Serial No. 675,288. Divided and this application filed August 22, 1899. Serial No. 728,123. (No model.)

To all whom it may concern.-

Be it known that 1, JOSH RUDOLF, a subject of the Emperor of Germany, and a resident of 31 Thalstrasse, Gera, in the Principality of Reuss and Empire of Germany, have invented a new and useful Improvement in Apparatus for Waterproofing and Finishing Textile Material, of which the following is a specification.

My invention relates to an improvement in apparatus for waterproofing and finishing cloth fabrics, felt, paper, leather, skin, and similar stuffs to protect them against stains and moths.

Heretofore it has been the practice in waterproofing and finishing such goods to apply stearin, wax, or analogous solid substances by dissolving said substances in benzole, benzin, &c., and then immersing the goods in the solution thus produced, or to allow a hot roller to rotate against such solid substances and then pass the goods against the roller or form plates or cylinders of such substances and allow the goods to rest on them. The first treatment has the disadvantage of being too costly, owing to the employment of means for dissolving, the substances and is also endangered by fire. In the second and third treatment it is difficult to accomplish a uniform and regular taking up of the substances.

My improvement comprises a heating device, a trough or reservoir adapted to receive an emulsion of substances insoluble in water, (as stated in my application,SerialNo.675283, for United States Letters Patent, filed March 26, 1898, of which this application is a divisionfl) an engraved feed-roller dipping into the trough or reservoir, a trimming-knife for the feed-roller for removing the surplus emulsion, a cold pressure-roller, under which the material treated is pressed against the feedroller, having a padding, an idle roller, an endless cloth band suspended from the idle roller and working under the pressure-roller, a protecting-strip guided between the feed and pressure rollers and led from idle rollers and tension-bars, and rollers and tension-bars for the material treated, as hereinafter described and claimed.

In order that my invention may be fully understood, I will proceed to describe it with emulsion of solid hydrocarbonssuch as paraffin, ozocerite, or similar substances, as stearin and palmitin, or with an emulsion of zinc, calcium, aluminium stearates or palmitates, vegetable wax, beeswax, rosin, &c. These substances are very finely separated in hot water or other fluid while in their solid condition, either singly or mixed with each other, by means of an emulsion centrifugal machine, whereby an emulsion is produced in which the solids are finely separated and similar in consistency to the fat in milk. Located within the reservoir or trough and dipping into the heated emulsion is a feed-roller l, having an engraved or cut surface 4 which takes up and transfers the emulsion to the material to be Waterproofed or finished.

5 is an adjustable trimming-knife for re moving the surplus emulsion from the feedroller and also for regulating the thickness of the thin film. of emulsion issuing therefrom and deposited on the fabric. Located over the feed-roller and bearing thereon is the main cylindrical pressure-roller 6, which is cold and under which the material to be treated is passed to receive a thin film ot' the emulsion from the feed-roller. The pressureroller is provided with a padding, providing an inner cushion or covering 7. Over this cushion runs an endless band 8, of thick cloth, extending from an idle roller 9. For the protection of this band, so that it may not be smeared at its sides, there runs with it a thin strip of cotton 10, which is guided by rollers 11, 12, and 13. and passes between tensionbars 14 and 15.

16 represents the material being operated upon, which passes from a roller 16 under an idle roller 17,.between tension-strips 1S and 19, and then between the feed-roller4; and the pressure-roller, where it receives its coating of waterproofing or finishing emulsion in the form of a thin film. It will be apparent that only the emulsion contained in the cuttings or engravure of the feed-roller is transferred to the material under treatment.

By my apparatus the taking up of the em ulsion is accomplished uniformly, owing to the employment of the padding and the bands referred to. According to the material acted on and according to the necessity of applying more or less of the emulsion the surface of the feed-roller is held strongly or lightly against the material. The material treated has the emulsion melted into it from the hot feed-roller, as the temperature must be above 80 centigrade.

Having thus described my invention, the following is What I claim as new therein and desire to secure by Letters Patent:

An apparatus for waterproofing and finishing textile material While permitting the material to remain porous, comprising a heating device, atrough located overithe heating device, for containing the emulsion to be heated and applied, an engraved feed-roller dippinginto the heated emulsion, a trimmingknife for removing the surplus emulsion from the engraved feed-roller, a cold pressureroller having a padding providing a cushion for the fabric, a tension device through which the fabric is drawn on its passage between The foregoing specification signed at Gera this 19th day of July, 1899.

JOSEF RUDOLF. In presence of- A. BRAUTIGAM, JULIUS SCHNABEL. 

